chemical modification of activated carbon and its application for solid phase extraction of copper(ii) and iron(iii) ions

powder activated carbon surface (ac) was grinded and modified and altered procedure thorough a facile and easy chemical reaction to appearance of 2-((3silylpropylimino)1-methyl) phenol (ac- (spimp)). subsequently, this novel sorbent efficiently applied for the extraction and preconcentration of some metal ions from real samples. preliminary the influences of variables such as ph, amounts of reagents and porous ac, eluting solution conditions (type and concentrations), sample volume and influence of interference of many ions on the analytes recoveries was studied and optimized. this new sorbents property including pore size, pore volume and surface properties was evaluated and monitored by bet, while structure and homogeneously of sorbent was identified by sem. the surface modification was traced by ft-ir as powerful and strong identification techniques. the proposed sorbent has high surface area(>1317.1346 m2 g-1) and small pore size(